‘9N’ years1939 thru 1941 = 3 speed forward transmission, solid radius rods, serial # is stamped on left side of engine block below cylinder head, 5 lug front

Easiest way is to look at rear of the tractor ‘L’ uses hollow pipe for a main frame, LA pipe frame is covered to look like a solid

2 cylinder generator colors Waterloo built tractors were black until the black dash 20 series tractors. After that they were painted green unless it was an industrial then

Farmall tractors could be equipped with either a voltage regulator or a ‘cutout’. They look very similar, the difference is the voltage regulator will have 3 terminals on

The easiest way to tell on most rowcrops besides looking at the serial number tag is to look at the outer brake covers, supers have cast iron outer

Push clutch pedal down, if it seems to stop halfway before feeling moe resistance it should have live pto.

The square tube wide front ends for the 2 cylinder Waterloo built tractors were first available October 1954. The round tube wide front end was not an option

If your new electrical cutout is not working try this; take the cover off clean the contact points if they are corroded use a point file, gap them